Ash hopper



AI'PI ASH HOPPER. APPLICATION FILED OCT. 6, I9`2l.

Patented July' 18, 1922.

simi .es

ARTHUR r. srnoive, or cHrcaeo, itniivoigassisiiolt To ennniv ENGINEERING COMPANY, or Elisa.4 cnrcaeo, iraniana, Aoonrona'rroiv or immers.

Asi-I Herren.'

. innesco.

Speeication of Letters atent.

Application led October 6, Serial No.-565,'7)3.

To all whom t may concern.'

Be it known that l, ARTHUR P. STRONG. a citizen of the United. States, residing at Chiin the county of Cook and State of illinois, have invented new and useful lm'- provements in Ashlloppers, of which. the Following is a specification.

This invention relates to metal hoppers or tanks for the collection and disposal of ash or other disintegrated materials.

- @ne object of my invent-ion is to make the walls of the tank or hopper of supporting beams and metal plates and to secure the plates to the beams by bolts in such a man ner that one bolt is common to two plates.

A further object of the invention is to cover the heads at the inner end of the bolts by overlapping the plates at the bolts and provide the overlapped portion of the plates with registering recesses to receive the bolt heads andthus protect the same from corrosion or abrasion from the material. packed against the plates.

The invention consists further inthe matters hereinafter described and more particularly pointed out in the appended claims.

Tn the accompanying drawings- Fig. l is a side elevational view of a storage tank or hopper constructed in accordance with my invention;

Fig. 2 is an enlarged fragmentary inside view of a portion of one ot the upright walls of the tank or hopper;

F 3 is a horizontal sectional view taken on line 3 3 of Fig. 2; y

Fig. 4f is a vertical sectional vicw taken on line 4l-4 of Fig. 2; and

Fig. 5 is a perspective View of one oitl the wall plates.

in the drawings, I have shown a storage tank or hopper of the type having upright side walls l, l, and a hopper bottom 2 provided with a gate controlled discharge opening.v as customary in structures oil this general kind, The tank or hopper is usually elevated or supported above the ground or platform, as the case may be, a distance sullicient to permit emptying of the hopper or tank into a car or truck when moved under the same. As shown in Fig. l, the structure includes upright supporting posts 3 4For elevating the tank. The upright side and end walls l, l rest on and are connected with a horizontal base frame 4l at the upper ends oi the posts 3, as indicated in Fig. l..

The side and end walls l are made alike, so a description oi one will suliice for all.

`Secured to the base frame are ar plurality oitA upright beams or members 5, 5.- These are laterally spaced apart and, as shown in Fig. 3. are preferably inthe shape ol2 lbeams. Said .beams dextend upward the saine distance and are connected together at their upper ends by` a cross-member (j at the top ot thetank or hopper, as shown in Figi.

vThe spaces between the upright beams 5, ."5 closed by vertical rows oi metal plates 7,7. The plates in each row are arranged onev above the other and are located inside ot' the as shown. The plates? are secured to the beams between which they eX tend by bolts 8, 8, these being at the upper edge of each plate, only, in the torni oi structure shown in the drawings. The bolts extend through the plates and the side flanges of the beams 5 overlapped bythe plates and have their heads inside oi' said plates. while their outer threaded ends project outside of the beams and in position to have clamp Anuts applied thereon.

As shown in Fig; 4, the upper edge or margin of a plate 7 in each vertical row is overlapped on the inside by the lower margin oi the plate .7 thereabove in the same row. This provides a downward shed and makes leak-proof lioints between such margins of the plates. The overlapping portions of the plates 7, 7 have registering recesses l0, 11 to receive and accommodatek the bolt heads 9. This permits one plate to overl-ap the other in substantially close contact, and thus insures a proper jointy between the two, and further protects and shields the bolt heads from contact with the material packed in the tank. As a result, the bolt heads 9 are protected`-from corrosion or abrasion from such material. This is a decided advantage in ash hoppers, not only because of the marked abrasive property of such material, but because it is discharged into the hopper damp and hot, and corrosion kof the bolts would follow if exposed to contact with such material. Moreover, the bolt heads are not allowed to project into the hopper and thus do not form shoulders or ledges for the material to accumulate and collect on.

The plates 7 in each horizontal row overlap along their side edges or margins and throughout the 'tall length of the same. This overlapping is also 4along the associated beams 5, and one bolt 8 is inserted through two plates. There are two bolts tor each plate, one at each otl the upper corners thereet, and with each bolt common to each two plates. This reduces the number of bolts required in the structure and thus saves labor and expense in making and erecting the same. As shown in Figs. 2 and 5, the plates T are tlat and substantially rectangutar in shape with their side edges parallel but inclined. This causes the lower lett-hand corner ot each plate in one vert-ical row to be over the upper right-hand corner of the plate therebelow and immediately to the left, when the structure is viewed as in Fig. 2. Moreover, the plates overlap at the corners, as shown in Fig.

While T have shown and described herein in detail a storage tank or hopper constructed in accordance with my invention, it is of course to be understood that the details of construction and arrangement ot parts may be variously changed and modified without departing trom the spirit and scope of my invention.

T claim as my invention:

l. A tank wall, comprising plate supporting beams, plates arranged inside of said beams and closing the spaces between the same, and bolts securing the plates to said beams, the heads ot the bolts being inside and overlapped and covered by the marginal portions ot adjacent plates for protecting the bolts Yfrom contact with the material packed against the inside ot said wall, said plates having recesses to receive and accommodate the bolt heads.

A tank wall, comprising upright beams laterally spaced apart, a row ot vertically arranged plates in each ot' the spaces between the beams and extending between the saine, said plates having their side margins at the beams and overlapping the side margins of adjacent plates, and bolts securing the plates to said beams and extending through the overlapped side portions thereof, the lower ends ot the plates in each vertical row overlapping on the inside the upper ends of the plates therebelow in said row and covering the inner ends otl the bolts.

3. A tank wall, comprising` upright beams laterally spaced apart, a row of vertically arranged plates in each of the spaces between the beams and extending between the same7 said plates having their `side margins at the beams and overlapping the side margins of adjacent plates, bolts securing the platesto said beams and extending through the overlapped side portions thereot, the lower ends ot the plates in each vertical row overlapping on the inside theupper ends of the plates therebelow in said row and covering the inner ends yof the bolts, and said plates having inclined side edges so that one lower corner of each plate overlaps an upper corner and bolt thereof of a plate in the adjacent row.

In testimony that T claim the 'foregoing as my invention, I afiix my signature, this 29th dajv of September, A. D. 1921.

ARTHUR P. STRONG. 

